Home / 987,939.54-1,363,363.11-535,230.54

Finding the Fourth Proportional to 987,939.54, 1,363,363.11 and 535,230.54

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Solution

The fourth proportional to 987,939.54, 1,363,363.11 and 535,230.54 is: 738,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,939.54 : 1,363,363.11 = 535,230.54 : x
  2. Step 2: Convert to fraction form
    987,939.54/1,363,363.11 = 535,230.54/x
  3. Step 3: Cross multiply
    987,939.54x = 1,363,363.11 × 535,230.54
  4. Step 4: Simplify right side
    987,939.54x = 729,713,573,581.38
  5. Step 5: Solve for x
    x = 729,713,573,581.38/987,939.54
  6. Step 6: Final answer
    x = 738,621.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.